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Power Window Control System - Diagnostics: Inspection

  1. INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSY 
    1. Measure the resistance of the switch when the switch is operated.
      Fig 1: Inspecting Power Window Regulator Master Switch Assy
      G02956664Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard: 

      Driver switch 

      POWER WINDOW REGULATOR MASTER SWITCH ASSY (DRIVER SWITCH)

      Switch Condition Tester Connection Specified Condition
      AUTO UP 6 (PW) - 20 (DUP) Below 1 ohms
      6 (PW) - 20 (DUP)
      UP 6 (PW) - 20 (DUP) Below 1 ohms
      OFF - -
      DOWN 6 (PW) - 11 (DDN) Below 1 ohms
      AUTO DOWN 6 (PW) - 11 (DDN) Below 1 ohms
      6 (PW) - 16 (AUTO)

      Passenger switch 

      POWER WINDOW REGULATOR MASTER SWITCH ASSY (PASSENGER SWITCH)

      Switch Condition Tester Connection Specified Condition
      AUTO UP 3 (DT1) - 14 (SC2) Below 1 ohms
      3 (DT1) - 15 (SC3)
      UP 3 (DT1) - 14 (SC2) Below 1 ohms
      OFF - -
      DOWN 3 (DT1) - 13 (SC1) Below 1 ohms
      AUTO DOWN 3 (DT1) - 13 (SC1) Below 1 ohms
      3 (DT1) - 15 (SC3)

      If the result is not as specified, replace the master switch assy.

    2. Check the window lock switch.

      Standard: 

      WINDOW LOCK SWITCH

      Window Lock Switch Condition Tester Condition Specified Condition
      UNLOCK 7 (W/L) - 6 (PW) Below 1 ohms
      LOCK 7 (W/L) - 6 (PW) 10 k ohms or higher

      If the result is not as specified, replace the master switch assy.

    3. Check the door control switch.

      Standard: 

      DOOR CONTROL SWITCH

      Door Control Switch Condition Tester Condition Specified Condition
      UNLOCK 10 (E) - 18 (MUL) Below 1 ohms
      LOCK 8 (ML) - 10 (E) Below 1 ohms
      OFF - -

      If the result is not as specified, replace the master switch assy.

  2. INSPECT POWER WINDOW REGULATOR SWITCH ASSY 
    1. Measure the resistance of the switch when the switch is operated.

      Standard: 

      POWER WINDOW REGULATOR SWITCH ASSY

      Switch Condition Tester Connection Specified Condition
      AUTO UP 3 (A) - 8 (PCT) Below 1 ohms
      AUTO UP 1 (U) - 8 (PCT) Below 1 ohms
      UP 1 (U) - 8 (PCT) Below 1 ohms
      OFF - -
      DOWN 6 (D) - 8 (PCT) Below 1 ohms
      AUTO DOWN 3 (A) - 8 (PCT) Below 1 ohms
      AUTO DOWN 6 (D) - 8 (PCT) Below 1 ohms

      If the result is not as specified, replace the regulator switch assy.

      Fig 2: Inspecting Power Window Regulator Switch Assy
      G02956665Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSPECT DOOR CONTROL SWITCH ASSY 
    1. Measure the resistance of the switch when the switch is operated.

      Standard: 

      DOOR CONTROL SWITCH ASSY

      Switch Condition Tester Connection Specified Condition
      LOCK 2 (E) - 3 (L) Below 1 ohms
      OFF - -
      UNLOCK 1 (UL) - 2 (E) Below 1 ohms

      If the result is not as specified, replace the switch.

      Fig 3: Inspecting Door Control Switch Assy
      G02956666Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. INSPECT POWER WINDOW REGULATOR MOTOR ASSY LH FRONT 
    1. Inspect operation of the power window regulator motor (for driver side door).
      Fig 4: Inspecting Power Window Regulator Motor Assy LH Front
      G02956667Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      • Be sure not to apply the battery voltage to terminals 3 (PLS), 4 (LMT) and 5 (E) of the power window regulator motor assembly LH connector, because it might damage the pulse sensor and the limit switch.
      • Be sure to reset the power window regulator motor assembly (to the initial setting of the limit switch) when the power window regulator motor assembly LH is installed to the regulator.
      1. Check that the motor operates smoothly when the battery voltage is applied to each terminal of the connector.

        OK: 

        POWER WINDOW REGULATOR MOTOR (FOR DRIVER SIDE DOOR)

        Measurement Condition Specified Condition
        Battery positive (+) -> Terminal 1 (D)
        Battery negative (-) -> Terminal 2 (U)        		 Motor gear rotates clockwise
        Battery positive (+) -> Terminal 2 (U)
        Battery negative (-) -> Terminal 1 (D)        		 Motor gear rotates counterclockwise

        If the result is not as specified, replace the motor assy.

    2. Inspect operation of the PTC inside the power window regulator motor.
      NOTE: Be sure that the power window regulator and door glass are installed to the vehicle before inspection.
      1. Set an electrical tester DC 400 A probe to the wire harness of terminal 1 (D) or 2 (U).
        NOTE: Match the arrow mark of the probe with the current direction.
      2. Fully close the door glass.
      3. When approximately 60 seconds have elapsed after the door glass has been fully closed, check the changing time of the current, from 16 to 34 A into 1 A, when the power window regulator master switch is pulled UP furthermore (inspection of current cut-off).

        Standard: Approximately 4 to 90 seconds 

      4. When approximately 60 seconds have elapsed after the inspection of the current cut-off, check that the door glass goes down when the power window regulator master switch is pushed DOWN.
  5. INSPECT POWER WINDOW REGULATOR MOTOR ASSY RH FRONT 
    1. Inspect operation of the power window regulator motor (for passenger side door).
      Fig 5: Inspecting Power Window Regulator Motor Assy RH Front
      G02956668Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      • Be sure not to apply the battery voltage to terminals 3 (PLS), 4 (LMT) and 5 (E) of the power window regulator motor assembly RH connector, because it might damage the pulse sensor and the limit switch.
      • Be sure to reset the power window regulator motor assembly (to the initial setting of the limit switch) when the power window regulator motor assembly RH is installed to the regulator.
      1. Check that the motor operates smoothly when the battery voltage is applied to each terminal of the connector.

        OK: 

        POWER WINDOW REGULATOR MOTOR (FOR PASSENGER SIDE DOOR)

        Measurement Condition Specified Condition
        Battery positive (+) -> Terminal 1 (U)
        Battery negative (-) -> Terminal 2 (D)        		 Motor gear rotates clockwise
        Battery positive (+) -> Terminal 2 (D)
        Battery negative (-) -> Terminal 1 (U)        		 Motor gear rotates counterclockwise

        If the result is not as specified, replace the motor assy.

    2. Inspect operation of the PTC inside the power window regulator motor.
      NOTE: Be sure that the power window regulator and door glass are installed to the vehicle before inspection.
      1. Set an electrical tester DC 400 A probe to the wire harness of terminal 1 (U) or 2 (D).
        NOTE: Match the arrow mark of the probe with the current direction.
      2. Close the door glass fully.
      3. When approximately 60 seconds have elapsed after the door glass has been fully closed, check the changing time of the current, from 16 to 34 A into 1 A, when the power window regulator switch is pulled UP furthermore (inspection of current cut-off).

        Standard: Approximately 4 to 90 seconds 

      4. When approximately 60 seconds have elapsed after the inspection of the current cut-off, check that the door glass goes down when the power window regulator switch is pushed DOWN.
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